Cheap radio helmet, Buy Quality receiver strong directly from China radio remote for iphone Suppliers: Original Radiolink AT9 2.4GHz 9 Channel Transmitter Radio & R9D Receiver for RC Drone Quadcopter Helicopter
Radiolink AT9 2.4GHz 9 Channel Transmitter Radio & Receiver for Drone RC Hobby Heli SO FAR ONE OF THE FASTEST REMOTE CONTROL MOST COMPLETED FUNCTION, SUPPORT USB ONLINE UPDATED AND S-BUS, VIBRATION ALARM, DATA TELEMETRY AND UNBELIEVABLE PRICE “AIRCRAFE” model type addedProgrammable mix controlVibration alarm2.8 inches LCDData telemetry3ms quick responseChinese & English menuSupport S-BUSGreat performance in anti-interferenceNine channel with full functionSupport USB online updatedMini receiver1 Size: 183*193*100mm2 Weight: 0.88kg3 Frequency: 2.4GHz ISM band (2400MHz to 2485MHz)4 Modulation mode: QPSK5 Channel bandwidth: 5.0MHz6 Spread spectrum: DSSS7 Adjacent channel rejection: > 38dbm8 Transmitter power: 100mW(PCB testing), 20dbm(3 meter air testing)9 Operating Current: 105mA10 Operating Voltage: 7.4~15V11 Control distance: more than 900 meters ground, 1.5kms air12 Channel: 9 channels, 5~9 channels are customizable13